CN214476597U - Bending-resistant 5-core fireproof cable - Google Patents
Bending-resistant 5-core fireproof cable Download PDFInfo
- Publication number
- CN214476597U CN214476597U CN202120949088.7U CN202120949088U CN214476597U CN 214476597 U CN214476597 U CN 214476597U CN 202120949088 U CN202120949088 U CN 202120949088U CN 214476597 U CN214476597 U CN 214476597U
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- China
- Prior art keywords
- layer
- core
- cable
- twisted wire
- winding
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- Expired - Fee Related
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- 238000005452 bending Methods 0.000 title abstract description 12
- 238000004804 winding Methods 0.000 claims abstract description 37
- 239000004020 conductor Substances 0.000 claims abstract description 26
- 229920006231 aramid fiber Polymers 0.000 claims abstract description 23
- 229920001778 nylon Polymers 0.000 claims abstract description 17
- 239000011347 resin Substances 0.000 claims abstract description 12
- 229920005989 resin Polymers 0.000 claims abstract description 12
- 239000004677 Nylon Substances 0.000 claims abstract description 11
- 238000009413 insulation Methods 0.000 claims abstract description 10
- 229920000098 polyolefin Polymers 0.000 claims abstract description 8
- 239000000779 smoke Substances 0.000 claims abstract description 8
- 239000004743 Polypropylene Substances 0.000 claims abstract description 6
- -1 polypropylene Polymers 0.000 claims abstract description 6
- 229920001155 polypropylene Polymers 0.000 claims abstract description 6
- 239000010410 layer Substances 0.000 claims description 78
- 239000011162 core material Substances 0.000 claims description 41
- 239000004760 aramid Substances 0.000 claims description 14
- 229920003235 aromatic polyamide Polymers 0.000 claims description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 6
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 6
- 239000003365 glass fiber Substances 0.000 claims description 6
- 239000010445 mica Substances 0.000 claims description 5
- 229910052618 mica group Inorganic materials 0.000 claims description 5
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000011888 foil Substances 0.000 claims description 3
- 229920001903 high density polyethylene Polymers 0.000 claims description 3
- 239000004700 high-density polyethylene Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 229910000077 silane Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 239000011229 interlayer Substances 0.000 claims description 2
- 230000002265 prevention Effects 0.000 abstract description 13
- 239000011248 coating agent Substances 0.000 abstract description 4
- 238000000576 coating method Methods 0.000 abstract description 4
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 abstract description 3
- 239000005030 aluminium foil Substances 0.000 abstract description 3
- 238000005253 cladding Methods 0.000 abstract description 3
- 239000003063 flame retardant Substances 0.000 abstract description 3
- 229910052736 halogen Inorganic materials 0.000 abstract description 3
- 150000002367 halogens Chemical class 0.000 abstract description 3
- 230000017105 transposition Effects 0.000 abstract description 3
- 230000009970 fire resistant effect Effects 0.000 abstract description 2
- 239000011521 glass Substances 0.000 abstract description 2
- 238000010618 wire wrap Methods 0.000 description 4
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Abstract
The utility model discloses a 5 core fireproof cable of bending resistance type, including five insulation core centers on a central tensile nylon fiber rope and with the common transposition of periphery polypropylene resin core form the cable core, the outside cladding of cable core has the nylon band around the covering in proper order, shield netted conductor layer, the aluminium foil sticky tape around the covering, the fine outband of high temperature glass is around covering and low smoke and zero halogen polyolefin oversheath, insulation core includes the inner conductor, the high temperature fire prevention area is indulged and is wrapped the inlayer, aramid fiber twisted wire winding inlayer, the high temperature fire prevention area is indulged and is wrapped the skin, aramid fiber twisted wire winding skin and insulating layer, this cable effectively prevents that the flame retardant coating dislocation from removing and spilling the space, better fire-resistant fire resistance has, improve fireproof cable's fail safe nature, better pliability and bending resistance characteristic have, durable use.
Description
Technical Field
The utility model relates to the technical field of cables, especially, relate to a 5 core fireproof cable of anti bending type.
Background
In recent years, the domestic economy continues to grow rapidly, and a huge market space is provided for the power cable industry. The development of the whole industry has the conditions of low concentration, dispersed technical strength and the like. The fireproof cable produced in the past can generate a large amount of heat value release during combustion due to the thick insulation thickness, and the insulation layer is fused to bring harm to an inner conductor.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to prior art not enough, the technical problem that solve provides a 5 core fireproof cable of bending resistance type, through effectively fixing the flame retardant coating, prevents that the flame retardant coating dislocation from removing and spilling the space, and the insulating layer melting passes through space infiltration contact conductor when can effectually preventing to catch fire, has better fire-resistant fire resistance, improves fireproof cable's fail safe nature, has better pliability and bending resistance characteristic, durable use.
The utility model discloses a make above-mentioned technical problem solve through following technical scheme.
The bending-resistant 5-core fireproof cable comprises five insulating wire cores, a central tensile nylon fiber rope is surrounded by the five insulating wire cores, the five insulating wire cores are jointly twisted with a peripheral polypropylene resin core material to form a cable core, a nylon tape wrapping layer, a shielding mesh-shaped conductor layer, an aluminum foil tape wrapping layer, a high-temperature glass fiber tape wrapping layer and a low-smoke halogen-free polyolefin outer sheath are sequentially coated outside the cable core, each insulating wire core comprises an inner conductor, and a high-temperature fireproof tape longitudinal wrapping inner layer, an aramid twisted wire wrapping inner layer, a high-temperature fireproof tape longitudinal wrapping outer layer, an aramid twisted wire wrapping outer layer and an insulating layer which are sequentially coated outside the inner conductor, the high-temperature fireproof tape longitudinal wrapping inner layer is a cross-linked polyethylene resin inner layer and mica tape outer layer double-layer bonding integrated structure, the high-temperature fireproof tape longitudinal wrapping outer layer is a cross-linked polyethylene resin inner and outer wrapping layer and mica tape interlayer three-layer sandwich bonding integrated structure, and the aramid twisted wire wrapping inner layer and the aramid twisted wire wrapping outer layer are aramid twisted wire unidirectional spiral structure, the winding distance of the aramid fiber twisted wire winding inner layer is larger than that of the aramid fiber twisted wire winding outer layer.
Preferably, the winding distance of the aramid twisted yarn wound on the inner layer is 1mm to 5 mm.
Preferably, the winding distance of the aramid twisted yarn winding outer layer is 3mm to 8 mm.
Preferably, the aramid twisted wire winding inner layer and the aramid twisted wire winding outer layer are spirally wound in the same direction.
Preferably, the inner conductor is formed by concentrically twisting a plurality of tinned copper monofilaments with the diameter of 0.05mm to 1 mm.
Preferably, the shielding mesh conductor layer is formed by mixing and spirally winding two tinned copper wires with different wire diameters and a wire diameter ratio of 0.9-1, and the wire diameter of the adopted tinned copper wire is 0.01-0.03 mm.
Preferably, the lay length of the cable core is 10 to 15 times of the outer diameter of the insulated wire core.
Preferably, the low-smoke halogen-free polyolefin outer sheath is a silane grafted cross-linked high-density polyethylene outer sheath.
As preferred, the fine outband of high temperature glass is for double-deck package structure around the covering.
Preferably, the nylon tape wrapping layer is of a nylon tape gap wrapping structure, and the wrapping distance is 2-4 times of the bandwidth.
The utility model has the advantages that:
1. indulge a packet inlayer and a high temperature fire prevention area through high temperature fire prevention area and indulge a packet skin and make effective fire prevention isolation between inner conductor and the insulating layer, can not with inner conductor direct contact after the insulating layer melting when catching fire, and, indulge a packet inlayer and a high temperature fire prevention area to a high temperature fire prevention area respectively through aramid fiber twist yarn winding inlayer and aramid fiber twist yarn winding skin and indulge a packet skin and go on around the package fixed, in cable installation and use, when experiencing crooked, the high temperature fire prevention area indulges a packet inlayer and a high temperature fire prevention area and indulges a packet skin and can not appear the dislocation removal and produce the space, the effectual insulating layer melting back of preventing catching fire permeates and contacts with the inner conductor through the space, make the fire resistance of cable more excellent, improve the fail safe nature of cable.
2. By adding the central tensile nylon fiber rope and the peripheral polypropylene resin core material into the cable core, the lateral pressure during bending can be better borne, the bending resistance of the cable is greatly improved, a better circular section of the cable is kept in the bending process, the phenomenon of wire breakage of the inner conductor and the shielding mesh-shaped conductor layer is greatly reduced, and the cable is durable in use.
3. Inside the aluminium foil sticky tape effectively prevented water invasion cable around the covering, improved the safe practicality and the electric insulation performance of cable.
Drawings
Fig. 1 is a schematic sectional structure diagram of an embodiment of the present invention.
In the figure: 1-insulating wire core, 2-central tensile nylon fiber rope, 3-peripheral polypropylene resin core material, 4-nylon tape wrapping layer, 5-shielding mesh conductor layer, 6-aluminum foil tape wrapping layer, 7-high-temperature glass fiber tape wrapping layer, 8-low-smoke halogen-free polyolefin outer sheath, 9-inner conductor, 10-high-temperature fireproof tape longitudinal wrapping inner layer, 11-high-temperature fireproof tape longitudinal wrapping outer layer and 12-insulating layer.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
As shown in fig. 1, the utility model provides a 5 core fireproof cables of anti bending type, including five insulation core 1 around a central tensile nylon fiber rope 2 and with periphery polypropylene resin core 3 transposition jointly form the cable core, preferentially, the lay length of cable core does 10 to 15 times of 1 external diameter of insulation core. The cable core outside cladding in proper order has the nylon band around covering 4, shielding mesh conductor layer 5, aluminium foil adhesive tape around covering 6, high temperature glass fiber tape outward around covering 7 and low smoke and zero halogen polyolefin oversheath 8, and in an embodiment, the nylon band is around covering 4 for the nylon band clearance around the package structure and around 2 to 4 times that the distance is the bandwidth. In one embodiment, the shielding mesh conductor layer 5 is formed by mixing and spirally winding two kinds of tinned copper wires with different wire diameters and a wire diameter ratio of 0.9 to 1, and the wire diameter of the tinned copper wire is 0.01mm to 0.03 mm. The low smoke zero halogen polyolefin outer sheath 8 is, for example, a silane grafted cross-linked high density polyethylene outer sheath. The high-temperature glass fiber tape outer wrapping layer 7 is preferably of a double-layer wrapping structure.
Insulating sinle silk 1 includes inner conductor 9 and cladding in proper order the high temperature fire prevention area of inner conductor 9 outside indulges a packet inlayer 10, aramid fiber twines the inlayer, high temperature fire prevention area indulges a packet skin 11, aramid fiber twines the skin and insulating layer 12 of twining, and specific saying so, inner conductor 9 is that a plurality of diameters constitute for the concentric transposition of 0.05mm to 1mm tinned copper monofilament. The high temperature fire prevention area is indulged and is wrapped inlayer 10 for crosslinked polyethylene resin inlayer and outer double-deck bonding body structure in mica tape, high temperature fire prevention area is indulged and is wrapped outer 11 for crosslinked polyethylene resin inside and outside coating and mica tape intermediate layer three-layer sandwich bonding body structure, aramid fiber twist thread twines the inlayer with aramid fiber twist thread twines the outer one-way spiral of aramid fiber twist thread and winds the package structure, and is further, aramid fiber twist thread twines the inlayer with aramid fiber twist thread twines the outer syntropy spiral of winding and winds the package. The winding distance of the aramid fiber twisted wire winding inner layer is larger than that of the aramid fiber twisted wire winding outer layer, and specifically, the winding distance of the aramid fiber twisted wire winding inner layer is 1-5 mm. The winding distance of the aramid twisted yarn winding outer layer is 3mm to 8 mm.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. Anti crooked type 5 core fireproof cable, characterized by: the cable comprises five insulation wire cores (1), a central tensile nylon fiber rope (2) and a peripheral polypropylene resin core material (3) are stranded together to form a cable core, a nylon tape wrapping layer (4), a shielding mesh-shaped conductor layer (5), an aluminum foil tape wrapping layer (6), a high-temperature glass fiber out-of-band wrapping layer (7) and a low-smoke halogen-free polyolefin outer sheath (8) are sequentially wrapped outside the cable core, each insulation wire core (1) comprises an inner conductor (9) and a high-temperature fire-proof tape longitudinal wrapping inner layer (10), an aramid twisted wire winding inner layer, a high-temperature fire-proof tape longitudinal wrapping outer layer (11), an aramid twisted wire winding outer layer and an insulation layer (12) which are sequentially wrapped outside the inner conductor (9), the high-temperature fire-proof tape longitudinal wrapping inner layer (10) is a crosslinked polyethylene resin inner layer and belt outer layer double-layer bonding integrated structure, and the high-temperature fire-proof tape longitudinal wrapping outer layer (11) is a crosslinked polyethylene resin inner-outer-layer and mica tape interlayer three-layer sandwiched bonding integrated structure, the aramid fiber twisted wire winding inner layer and the aramid fiber twisted wire winding outer layer are both aramid fiber twisted wire one-way spiral winding structures, and the winding distance of the aramid fiber twisted wire winding inner layer is larger than that of the aramid fiber twisted wire winding outer layer.
2. The bend resistant 5-core fireproof cable of claim 1, wherein: the winding distance of the aramid twisted wire winding inner layer is 1mm to 5 mm.
3. The bend resistant 5-core fireproof cable of claim 1, wherein: the winding distance of the aramid twisted yarn winding outer layer is 3mm to 8 mm.
4. The bend resistant 5-core fireproof cable of claim 1, wherein: the aramid fiber twisted wire winding inner layer and the aramid fiber twisted wire winding outer layer are spirally wound in the same direction.
5. The bend resistant 5-core fireproof cable of claim 1, wherein: the inner conductor (9) is formed by concentrically twisting a plurality of tinned copper monofilaments with the diameter of 0.05mm to 1 mm.
6. The bend resistant 5-core fireproof cable of claim 1, wherein: the shielding mesh conductor layer (5) is formed by mixing and spirally winding two tinned copper wires with different wire diameters and a wire diameter ratio of 0.9-1, and the wire diameter of the adopted tinned copper wire is 0.01-0.03 mm.
7. The bend resistant 5-core fireproof cable of claim 1, wherein: the lay length of the cable core is 10-15 times of the outer diameter of the insulated wire core (1).
8. The bend resistant 5-core fireproof cable of claim 1, wherein: the low-smoke halogen-free polyolefin outer sheath (8) is a silane grafted cross-linked high-density polyethylene outer sheath.
9. The bend resistant 5-core fireproof cable of claim 1, wherein: the high-temperature glass fiber tape wrapping layer (7) is of a double-layer wrapping structure.
10. The bend resistant 5-core fireproof cable of claim 1, wherein: the nylon tape lapping layer (4) is of a nylon tape gap lapping structure, and the lapping distance is 2-4 times of the bandwidth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120949088.7U CN214476597U (en) | 2021-05-06 | 2021-05-06 | Bending-resistant 5-core fireproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120949088.7U CN214476597U (en) | 2021-05-06 | 2021-05-06 | Bending-resistant 5-core fireproof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214476597U true CN214476597U (en) | 2021-10-22 |
Family
ID=78180966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120949088.7U Expired - Fee Related CN214476597U (en) | 2021-05-06 | 2021-05-06 | Bending-resistant 5-core fireproof cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214476597U (en) |
-
2021
- 2021-05-06 CN CN202120949088.7U patent/CN214476597U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211022 |